The writing process for the majority of Metallicaâs albums have followed the same process. A large slew of guitar riffs written primarily by James Hetfield, sometimes Kirk Hammett, and rarely the bandâs bass player, (that now being bass virtuoso Robert Trujillo) are reviewed and selected.
Lucknow, India (annual mean PM2.5, ug/m3: 96) The capital city of Uttar Pradesh is among the most polluted cities in the country. The lack of transport infrastructure and growing number of vehicles exacerbates the problem, according to India's Centre for Science and Environment.
Despite its reputation as a smog-filled metropolis affected by air pollution, dust from the Sahara and other forms of air-borne toxicity, London is only the 2,516th worst polluted city in the world. The most polluted city is Nyala in Sudan and other Sudanese cities make up six of the top 10 places, according to a report by the World Bank. Developing nations are home to the most polluted cities in the world - with Pakistan, Iraq and Egypt having the most cities in the top 100 of the list.